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English
According to the production process, high-pressure oil pipes are mainly divided into high-pressure steel wire braided oil pipes and high-pressure steel wire wound oil pipes.The structure of steel wire wound hose is mainly composed of inner rubber layer, middle rubber layer, four or more layers of alternately wound steel wire reinforcement layer and outer rubber layer.The inner rubber layer has the function of making the conveying medium withstand pressure and protecting the steel wire from erosion, the outer rubber layer protects the steel wire from damage, and the steel wire (ф0.3-2.0 reinforced layer) layer is the skeleton material for reinforcement.High-pressure steel wire wound tubing (high-pressure tubing) Uses: High-pressure steel wire reinforced hydraulic tubing is mainly used for mine hydraulic support and oilfield development, suitable for engineering construction, lifting transportation, metallurgical forging, mining equipment, ships, injection molding machinery, agricultural machinery, various Petroleum-based (such as mineral oil, soluble oil, hydraulic oil, fuel oil, lubricating oil) and water-based liquid (such as emulsion, Oil-water emulsion, water) and liquid transmission, the maximum working pressure can reach 70-120Mpa.Working temperature of high-pressure steel wire wound oil pipe (high-pressure oil pipe): -40℃～120℃ Product specification range: DN6mm～DN305mm.Type: Type 4SP—medium-pressure hose with four-layer steel wire winding.Type 4SH—high-pressure rubber hose wound with four layers of steel wire.Type R12—four-layer steel wire winding high temperature and medium pressure oil pipe under harsh conditions.R13 type - multi-layer steel wire winding high temperature and high pressure oil pipe under harsh conditions.R15 type - multi-layer steel wire winding high temperature and ultra-high pressure oil pipe under harsh conditions.[1] Steel wire braided hose The structure of the high pressure steel wire braided hose is mainly composed of a liquid-resistant synthetic rubber inner rubber layer, a middle rubber layer, I, II, and III steel wire braided layers, and a weather-resistant synthetic rubber outer rubber layer.However, according to the design principle of the high-pressure hose, the III-layer braided hose has no effect when the hose is under pressure, which wastes materials, increases the weight of the hose itself, and reduces the flexibility of the hose.Therefore, there is no standard for this hose in the standards of various countries.The old engineers of some enterprises still use the old standards of the past, so some people still choose this model when designing.Application of high-pressure steel wire braided rubber hose: High-pressure steel wire reinforced hydraulic oil hose is mainly used for mine hydraulic supports and oil field development, suitable for engineering construction, lifting transportation, metallurgical forging, mining equipment, ships, injection molding machinery, agricultural machinery, various machine tools and various industries Petroleum-based (such as mineral oil, soluble oil, hydraulic oil, fuel oil, lubricating oil) and water-based liquid (such as emulsion, oil-water emulsion, water) with certain pressure and temperature are transported in the mechanized and automated hydraulic system of the department and Fluid transmission.Working temperature of high-pressure steel wire braided rubber hose: oil -40°C ~ 100°C, air -30°C ~ 50°C, water emulsion +80°C.Specification range of high-pressure steel wire braided hose: DN5mm～DN102mm.Oil drilling hose structure: inner rubber layer, inner rubber protective layer, middle rubber layer, steel wire winding layer and outer rubber layer.Uses: Steel wire wound drilling hose is used for oil field cementing, well workover and petroleum geological exploration, small drilling rigs and water conservancy coal mining, conveying fluid media such as mud and normal temperature water.
